{"id":1792,"date":"2026-04-15T06:57:45","date_gmt":"2026-04-15T06:57:45","guid":{"rendered":"https:\/\/worm-reducers.xyz\/?post_type=product&p=1792"},"modified":"2026-04-15T06:58:11","modified_gmt":"2026-04-15T06:58:11","slug":"wpwo-worm-gear-reducer-19-2745-nm-0-12-33-2-kw-universal","status":"publish","type":"product","link":"https:\/\/worm-reducers.xyz\/ko\/product\/wpwo-worm-gear-reducer-19-2745-nm-0-12-33-2-kw-universal\/","title":{"rendered":"WPWO \uc6dc \uae30\uc5b4 \uac10\uc18d\uae30 | 19\u20132745 Nm, 0.12\u201333.2 kW \ubc94\uc6a9"},"content":{"rendered":"
\n

<\/p>\n

WPWO Series Worm Gear Reducer \u2014 Universal Heavy-Duty Gearbox, 19\u20132745 Nm<\/h2>\n
\n
\n

The WPWO series is a universal-mounting \uc6dc \uae30\uc5b4 \uac10\uc18d\uae30<\/strong> built around a cast iron housing, designed for the torque demands of heavy industrial machinery where the compact die-cast aluminium units used in packaging and light conveying would be under-specified. Output torque range is 19 to 2,745 Nm across the product series, with rated input power from 0.12 kW to 33.2 kW. At 1,400 rpm standard input speed, output speeds run from 19 to 186.7 rpm depending on the selected ratio.<\/p>\n

The housing is cast iron throughout \u2014 not the die-cast aluminium alloy used in the RV and NMRV series. Cast iron provides higher housing rigidity under sustained radial and axial shaft loads, better vibration damping in high-impact environments such as mining conveyor drives and rolling mill auxiliary equipment, and significantly better heat conduction to ambient air in continuous heavy-duty cycles where the smaller aluminium housing would exceed its thermal limits.<\/p>\n

\u00a0\"WPWO<\/p>\n

Noise level during operation is specified below 50 dB(A) \u2014 competitive with the aluminium series despite the larger size, due to the improved rigidity of the cast housing suppressing gear mesh vibration more effectively than a lower-stiffness aluminium alloy casting would. The WPWO accepts IEC motor flanges from 56B14 through 80B14 as standard, with wider flange options available for larger motor frame sizes.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

\uae30\uc220 \uc0ac\uc591<\/h2>\n

The two specification tables below cover the performance summary (torque, power, speed) and the complete material, configuration, and dimensional reference for the WPWO series. The product specification image follows immediately after.<\/p>\n

Performance Summary<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n
\uae30\uc5b4 \uc7a5\uce58<\/td>\n\ubc8c\ub808<\/td>\n<\/tr>\n
\ucd9c\ub825 \ud1a0\ud06c<\/td>\n19\u20132,745 N\u00b7m<\/td>\n<\/tr>\n
\uc815\uaca9 \ucd9c\ub825<\/td>\n0.12~33.2kW<\/td>\n<\/tr>\n
\uc785\ub825 \uc18d\ub3c4<\/td>\n1,400 RPM<\/td>\n<\/tr>\n
\ucd9c\ub825 \uc18d\ub3c4<\/td>\n19\u2013186.7 RPM<\/td>\n<\/tr>\n
Noise Level<\/td>\n< 50 dB(A)<\/td>\n<\/tr>\n
\ubaa8\ub378<\/td>\nWPWO<\/td>\n<\/tr>\n
\uc0c9\uc0c1<\/td>\nGreen \/ Blue \/ Red or on customer request<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Full Material & Configuration Specification<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\uc720\ud615<\/td>\nWorm gearbox reducer<\/td>\n<\/tr>\n
\ubaa8\ub378<\/td>\nWPWO<\/td>\n<\/tr>\n
\ube44\uc728<\/td>\n1:5, 10, 15, 20, 25, 30, 40, 50, 60<\/td>\n<\/tr>\n
\uc7ac\ub8cc<\/td>\nHousing: Cast iron (die-cast iron)<\/td>\n<\/tr>\n
Worm Wheel: Copper-10-3# bronze alloy<\/td>\n<\/tr>\n
Worm Shaft: 20CrMnTi with carburizing and quenching, surface hardness 56\u201362 HRC<\/td>\n<\/tr>\n
\ucd9c\ub825\ucd95: \ud06c\ub86c\uac15 45#<\/td>\n<\/tr>\n
IEC \ud50c\ub79c\uc9c0<\/td>\n56B14, 63B14, 63B5, 71B14, 80B14 and larger frames on request<\/td>\n<\/tr>\n
\uc724\ud65c\uc720<\/td>\nSynthetic \/ Mineral (ISO VG 220 or VG 320)<\/td>\n<\/tr>\n
\ud3ec\uc7a5<\/td>\nCarton and wooden case<\/td>\n<\/tr>\n
\ubcf4\uc99d<\/td>\n\ucd9c\ud558\uc77c\ub85c\ubd80\ud130 18\uac1c\uc6d4 (\ud55c\uad6d Ever-Power \uae30\uc900)<\/td>\n<\/tr>\n
\ud488\uc9c8<\/td>\nISO 9001:2015<\/td>\n<\/tr>\n
Typical Applications<\/td>\nMetallurgy, food and beverage, ceramics, chemicals, packaging, dyeing, woodworking, glass, mining, lifting and transportation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Product Specification Charts<\/h3>\n

The charts below show the WPWO mounting dimensions, product outline drawings, and dimensional specifications across the standard size range. Use these for CAD integration and mounting verification.<\/p>\n

\"WPWO<\/div>\n

<\/p>\n

Why Cast Iron Over Aluminium for Heavy-Duty Worm Gearboxes<\/h2>\n

The transition from die-cast aluminium to cast iron is not about weight \u2014 cast iron is 2.5\u20133\u00d7 heavier for the same volume. It is about stiffness, thermal capacity, and durability under sustained high-torque and shock load conditions. In applications such as rolling mill auxiliary drives, crane slewing mechanisms, and mining conveyor head stations, the gearbox experiences radial and axial shaft forces that would flex an aluminium housing enough to affect gear mesh geometry and accelerate wear on the worm wheel.<\/p>\n

\"\uc6dc<\/p>\n

Cast iron’s higher modulus of elasticity (approximately 100\u2013170 GPa vs 70 GPa for die-cast aluminium alloy) means the bearing seats deflect less under load, maintaining the centre-distance geometry between the worm shaft and worm wheel within tolerance across the operating load range. This is what allows the WPWO series to achieve output torques approaching 2,745 Nm in the larger frame sizes \u2014 a torque level at which the aluminium housing in an equivalent aluminium-body unit would require wall thicknesses that defeat the weight advantage of aluminium.<\/p>\n

Cast iron also offers higher volumetric heat capacity \u2014 it absorbs and stores more heat energy per degree rise than aluminium does per unit volume. In a continuous heavy-duty cycle where the input power is near the thermal limit, cast iron’s heat storage allows the housing to ride through short peak-load periods without the oil sump temperature spiking immediately. The vent plug and oil fill level should still be checked at the first 100-hour oil change to confirm proper thermal behaviour in the installed environment.<\/p>\n

<\/p>\n

Key Specifications That Define the WPWO Series<\/h2>\n
\n
\n

\u2726 19\u20132,745 N\u00b7m Output Torque Range<\/strong><\/p>\n

The torque range across the WPWO size series covers light-duty conveyors at the low end through to heavy rolling equipment auxiliary drives at the high end \u2014 a 145:1 torque ratio across the series. Specifying from a single product family simplifies procurement and maintenance sparing regardless of where in the range a specific drive sits.<\/p>\n<\/div>\n

\n

\u2726 Rated Power to 33.2 kW<\/strong><\/p>\n

The 33.2 kW ceiling accommodates standard three-phase motor sizes up to 37 kW frame with appropriate service factor derating. This covers the vast majority of industrial drive applications in metallurgy, mining support, and bulk handling where a single worm stage is sufficient without the complexity of a multi-stage helical arrangement.<\/p>\n<\/div>\n

\n

\u2726 Below 50 dB(A) Operating Noise<\/strong><\/p>\n

The cast iron housing provides significant mechanical damping of gear mesh frequencies that would otherwise be transmitted through a thinner aluminium wall. Below 50 dB(A) at rated load is an industry benchmark for worm gearboxes in this torque class \u2014 relevant not just for operator noise exposure but for vibration transmission into surrounding machine structure and instrumentation.<\/p>\n<\/div>\n

\n

\u2726 Copper-10-3# Bronze Worm Wheel<\/strong><\/p>\n

Copper-10-3# (equivalent to ZCuSn10Pb3) is a tin-lead bronze that provides good load capacity and anti-seize properties at the sliding contact interface with the 20CrMnTi worm shaft. The lead component (3%) improves the initial break-in behaviour and reduces the risk of adhesive wear during the first operating hours \u2014 relevant for the higher contact stresses present in these larger frame sizes.<\/p>\n<\/div>\n

\n

\u2726 Universal Mounting \u2014 Any Orientation<\/strong><\/p>\n

The “WO” designation indicates universal mounting \u2014 the WPWO housing can be installed foot-mounted, flange-mounted, or torque-arm-mounted in any of the standard positions. This makes it suitable for horizontal, vertical, and inclined shaft installations without a different housing variant for each orientation.<\/p>\n<\/div>\n

\n

\u2726 20:1 \uc774\uc0c1\uc758 \ube44\uc728\uc5d0\uc11c \uc140\ud504 \ub77d\ud0b9 \uae30\ub2a5 \uc791\ub3d9<\/strong><\/p>\n

At the standard single-start worm ratios of 20:1 and above, the output shaft is self-locking under static load. In lifting and gate actuator applications this eliminates a separate holding brake \u2014 a significant simplification in the electrical and safety system design for equipment in the 500\u20132,000 Nm torque class that would otherwise require a substantial brake motor assembly.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Industries and Applications<\/h2>\n

\u25b8 Metallurgy, Steel & Lifting Equipment<\/h2>\n

\"WPWO<\/p>\n

Rolling mill auxiliary drives, crane slewing mechanisms, coil transfer tables, and ladle turret rotation are all applications where the WPWO’s cast iron housing stiffness and high torque capacity are the deciding factors. A crane slew drive at 30:1 or 40:1 in the 1,000\u20132,000 Nm output torque range with a 7.5\u201315 kW motor is a typical WPWO specification in Korean steel plant equipment. The self-locking property at these ratios means the slew mechanism holds position when the motor is de-energised \u2014 a fail-safe behaviour that complements (but does not replace) the positive hold brake on a certified crane installation.<\/p>\n

\u25b8 Plastics, Beverage & Heavy Packaging Lines<\/h3>\n

\"WPWO<\/p>\n

Plastic extrusion screw drives, blow moulding turntable drives, and beverage crate conveyor end-drives are applications where a compact aluminium gearbox runs hot under the high continuous torque demand of moving dense product loads. The WPWO’s higher thermal mass and cast iron heat conduction path sustains continuous operation at load levels that would thermally limit an aluminium RV series unit. A blow moulding turntable drive at 15:1\u201320:1, 2.2\u20135.5 kW, 70\u201393 rpm is a typical WPWO application in Korean plastics processing plants.<\/p>\n

\u25b8 Mining, Chemical & Construction Equipment<\/h3>\n

\"WPWO<\/p>\n

Mine support conveyor drives, chemical plant agitator shaft drives, and construction site concrete transport conveyors all require drives that are genuinely robust to vibration, shock loads, and exposure to dust, water, and chemical vapour. The WPWO cast iron housing withstands these conditions without the corrosion pitting that affects aluminium alloy housings in acidic or alkaline atmospheric environments. Typical mining conveyor specification: WPWO at 20:1\u201325:1, 5.5\u201311 kW, providing 500\u20131,000 Nm output torque for head-end drum drives on a 200\u2013500 mm belt conveyor. For more \uc6dc \uae30\uc5b4 \uac10\uc18d\uae30<\/a> options across all torque ranges, see the full product range.<\/p>\n

<\/p>\n

Installation & Maintenance Guidance<\/h2>\n

Korea Ever-Power recommends the following commissioning and maintenance sequence for the WPWO series in continuous industrial service:<\/p>\n